Compressing apparatus



T. LUND. COMPRESSING APPARATUS. APPLICATION FILED 5mm. 1911 PatentedJune 14, 1921.

2 SHEETS-SHEET 1- T. LUND.

COMPRESSWG APPARATUS.

APPLICATION men Aue.21. 191?.

1,38 1 ,207 Patented June 14, 1921.

v 2 SHEETS-SHEET 2.

lilitiffiifi STATES PATENT QFFEQ THOMAS LUND, OF BEVERLY, MASSACHUSETTS, ASSIGNOR, BY

MESNE ASSIGNMENTS,

TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEN JERSEY, A COR- PORATION OF NEW JERSEY.

COMPRESSING APPARATUS.

Specification of Letters Patent.

Patented June 14:, 1921.

Application filed August 21, 1917. Serial No. 187,490.

T 0 all whom it may concern:

Be it known that I, THOMAS LUND, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain Improvements in Compressing Apparatus, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

The present invention is directed to apparatus for subjecting material to a high degree of pressure and is especially adapted to be embodied in machines for compressing portions of the bottoms of shoes, as the soles or the toplifts of heels.

' Heretofore such operations have ordinarily been performed by machines of the beam type, in which the object operated upon is pressed between a die and mold while held against lateral expansion by the latter. As in these machines the effect has been-exerted heretofore simultaneously over the entire area acted upon, the parts had to be of great strength to stand the aggregate pressure. In such a reciprocating press it is also somewhat diflicult, because of the position of the die directly above the mold, to introduce the work into said mold easily and accurately.

An object of this invention is to provide a novel apparatus in which the feature of the mold with its lateral retaining eflect is included, yet in which the pressure is applied gradually over successive limited areas so that at no time is it excessive. This I ac complish by employing contacting rotatable members, as peripherally contacting rolls, one of which carries the mold or like objectholding recesses.

Another object of the'invention is to render the mold readily accessible. As it is revolved in the rotation of the roll of the apparatus herein illustrated, it is presented to the operator without interfering elements so that he may readily place the work Within it, and thereafter it is so positioned that the compressed object may automatically be discharged. To facilitate the discharge the mold is constructed in separable sections,

Other objects will appear upon consid eration of the following description and claims.

In the accompanying drawings one of sev eral embodiments of the invention is illustrat'ed,

Figure 1 being a front element of my improved apparatus;

Fig. 2 an end elevation thereof looking from the left in Fig. 1;

Fig. 3 a perspective detail view of the lower mold-carrying roll, and

Fig. 4 a detail in perspective of a bearing for the other roll.

F min a base plate 10 rise heavy standards 12, 12 and an outer standard 14 in the upper portions of which is journaled a shaft 16 for one of the pressure members of the appara tus, the body of this preferably consisting of a roll 18. This roll is provided with a recess furnishing a mold, which in the present instance is of such form as to hold for compression a sole. I prefer to construct the mold in sections movable toward one another and being supported upon the surface of the roll, which furnishes the bottom of the mold. As shown in Fig. 1 of the drawings, .the mold sections consist of plates 19, 19 having at their meeting edges cut-away portions which are equal and opposite with respect to the outline of the object to be received, these portions furnishing the side walls of the mold. The plates are curved circumferentially of the cylinder to conform thereto and are set in a recess formed by cut-away portions of the adj acentedges of sections 20, 20 of a sleeve mounted to slide upon the roll. The plates 19 are secured to the sections by curved retaining members 22, 22 each of which has a flange 24 entering a groove in the outer surface of the corresponding plate. The body of the retaining member rests in a recess at the edge of an annular depression 25 in the sleeve section, being fastened therein by screws. To compel the sections to turn with the roll and yet be movable longitudinally thereon, they are each connected to it by a spline and groove appearing at 26.

At the top of each of the standards 12, furnishing the upper portion of the bearings for the shaft 16, are cap blocks 28, 28 which movement in the ways.

may be connected by rods 30 to 'stilfenxthe frame. In these blocks are vertical ways to receive bearing sleeves 32, particularly illus trated in Fig. 4 of the drawings, these sleeves being mounted for limited vertical cap blocks 28 is a roll 34El1aving a central pressure portion 36, the width of which is such as to admit it between the end walls of the sleeve depression 25, yet enabling'itto' cover the full widthof the mold opening. Beyond the mold the space between the walls of the depression is narrowed, there being camsurfaces at 38 with which, when the roll 18 is rotated, the edges ofthe portion 36 j may contact to separate the sections 20, slidfrom a counter shaft 44: upon which are fast and loose pulleys (6 for operation through a driving belt, not shown. Upon one extremity of the shaft 44,, between the standard llandadjacent standard 12, is a pinion 4L8 which meshes with a large gear'5O uponthe ro'll shaft'16,thus rotating the roll and mold in the direction of the arrow in Fig.2; The roll B l, withits projectingv pressure portion 36, rotates idly, but its bearing sleeves 32 are arranged to be lowered and raised in their ways to bring the portion36 into operative pressure relation with the surface of the. mold and relieve said pressure. For this purpose each of the sleeves is provided witha pair of lugs52, 52, between each pair of which is articulated a connecting rod 54 pivoted at its other end upon a pin project- .ing fromth'e outer side of a crank 56 mounted to rock upon theouter side offthe standard 12. The lower end of each crank is joined by a link 58 to a lever 60. This is ,fulcrumed upon a standard'12 and connected at its upper extremity by. a link 62 to the end 7 of a lever 64:, also fulcrumed upon the standard. Thesetwo levers, therelation of which may be changed by adjusting the length of the link 62 through a right and. left threaded nut 63, form a parallel'motion. v Each lever system is shown as beingarranged to be swung about its fulcrums by a cam66 contacting with antisfriction rolls 68 mounted to turn upon the levers. The contour of the cam is such that both the rolls 68 are continuously in contact with the cam surface and thereby the lever 60 is caused, through the link 58, to rock the crank 56. This moves the link 54. from the vertical position illus- Journaled in the trated in Fig. 2 of the drawings, in which the pressure surface 36 and the mold are 1n working contact, to a position at the left as viewed in Fig. 2, in which the upper roll will be slightly raised to separate these surfaces. In operating upon any partlcular article,

as the sole of a shoe, the roll 18 is supplied with plates 19 having anopening of such form and size that the article may readily be placed within the mold recess without leaving an undue space for lateral expansion.

The mold-carrying roll is driven continuously through the' gearing, and'as it rises at I the front of the apparatus to the position illustrated inFig. 1, the operator places a sole within the mold, the sections of which are at this time held-together by the contact 7 of the rolls -10 with the cam surfaces 42. Just :after the. forward'edges of the plates19 have arrived beneath the pressure portion 36 of.

the upper roll, thejcam 66 reaches'the position in which it isseen in Fig. 2, the connecting rod 54 being here placed in its vertical position by the lever system and the portion 36 brought down upon the pressure surface of the mold with considerable force. Thus, as the mold passes on beneath the upper roll, the soleheld within it is compressed gradually along successive transverse lines,

the force which itis necessary to exertatany time being such as to require an apparatus of not very massive: construction. The side walls of the mold hold the sole against fiattening or expanding laterally, so that the fibers are given that degree of density which is desired. After the mold opening has traveled beneath the portion 36 of the upper roll, so that the sole has been completely com pressed, the cam 66 moves the lever systems inqthe opposite direction, swinging the connecting rod 54: from its vertical position and raising the bearing sleeves 32and with them the roll, so that the portion 36 no longer presses-upon'the surface of the mold plates.

This relieves the pressure upon the mold and as it descends .at'the rear of the apparatus, the cam portions 4L2 pass beyond the rolls 40 while the outer edges of the roll portion "36 engage the cam surfaces 38 upon the sleeve sections. 7 They are therefore caused to slide with little resistance upon the roll '18 to separate the mold sections,

freeing the compressed solefrom engage-V ment with the side wallsof the mold, and'as SfllCl mold is inverted the sole drops therefrom. The mold new again rises at the frontof thefimachine to be supplied with another sole,and the operation is repeated as just'described. c

Having thus described myinvention, what I claim as new and desire to secure by Letters Patent. of the United States is:

1. In acompressing apparatus, rotatable pressure members operating in contact w1th one another, one of sa d. members being provided with a recess to receive the article to be compressed and the other having a continuous surface operating opposite the recess and in contact with the surface adjacent thereto.

2. In a compressing apparatus, cooperating rotatable pressure members, one of said members being provided with a mold having a side wall to retain the article to be compressed against lateral expansion, and means arranged to move the side wall.

3. In a compressing apparatus, cooperating rotatable pressure members, one of said members being provided with; a sectional mold.

4. In a. compressing apparatus, cooperating rotatable pressure members, one of said members being provided with a sectional mold, and means for moving the sections of the mold toward and from one another.

5. In a compressing apparatus, cooperating rotatable pressure members, one of said members being provided with a sectional mold, and means carried by the pressure members for moving the sections of the mold.

6. In a compressing apparatus, cooperating rotatable pressure members, one or" said members being provided with a recess to receive the article to be compressed, and means efiective in the operation of the apparatus for moving the pressure members toward and from one another.

7. In a compressing apparatus, cooperating rotatable pressure members, said members operating in contact with one another during the compressing operation, and means for separating the members during another portion of the operation.

8. In a compressing apparatus, cooperating rotatable pressure members, one of said members being provided with a sectional mold, means for moving the sections of the mold toward and from one another, and means for moving the pressure members toward and from one another.

9. In a compressing apparatus, cooperating rotatable pressure members, one of said members being provided with a recess to receive the article to be compressed, said members operating in contact with one an-.

other during the compressing operation, and means for permitting the discharge of the article which has been compressed, including means for separating the pressure members prior to the discharge of the article.

10. In a compressing apparatus, a. roll provided with a work-receiving recess, a second roll having an unbroken cylindrical surface and operating in peripheral contact with the first about the recess, and means for rotating the rolls.

11. In a compressing apparatus, a roll provided with a work-receiving recess, a

second roll operating peripheral contact with the first about the recess, means effective in the operation of the apparatus for varying the relation between the axes of said rolls, and means for rotating the rolls.

12. In a compressing apparatus, a roll provided with a worlereceiving recess, a second roll operating inperipheral contact with the iirst about the recess, the axes of said rolls being held against movement during the compressing operation, means for rotating the rolls, and means effective in the operation of the apparatus for separating the axes of therolls after the compressing operation. V

In a compressing apparatus, a roll provided with a mold including portions separable from the roll, a second roll operable in contact with the first over the mold, and means for rotating the rolls.

lei. In a compressing apparatus, a roll provided with a mold including portions movable upon the roll, means for moving said portions, a second roll operating in contact with the first over the mold, and means for rotating the rolls.

15. In a compressing apparatus, a roll provided with a mold including portions movable upon the roll, means for moving said portions, a second roll operating in contact with the first over the mold, means for rotating the rolls, and means for producing relative movement of the axes of the rolls.

16. In a compressing apparatus, the combination with a roll, of a sleeve movablethereon, a mold carried by the sleeve, means for revolving the mold, and a pressure member coeperating with the mold.

17. In a compressing apparatus, the comination with a roll, of a sleeve movable thereon, a mold carried by the sleeve, means for rotating the roll, means for causing the mold to turn with the roll and a pressure member cooperating with the mold.

18. In a compressing apparatus, the combination with a rotatable roll, of a sleeve having sections movable longitudinally of the roll while being held to rotate therewith, mold sections carried by the respective sleeve sections, and a roll cooperating with the mold to compress an article therein.

' 19. In a compressing apparatus, the combination with a rotatable roll, of a sleeve having sections movable longitudinally of the roll while being held to rotate therewith, mold sections carried by the respective sleeve sections, and a roll cooperating with the mold to compress an article therein and cooperating with the sleeve sections to separate the same.

20. In a compressing apparatus, the combination with a rotatable roll, of a sleeve having sections movable longitudinally of the roll while being held to rotate therewith, said sections being provided with cam surfaces, mold sections carried by the respective sleeve sections, and a roll cooperating with the mold to compress an article therein and'cooperating With the cam surfaces of the leeveto separate the same.

2-1. In a compressing apparatus, the combination with a. pair of rotatable pressure r the operation.

22; Ina compressing apparatus, the combination with a pair of rotatable-pressure rolls, of a sectional mold carried by one of the rolls, the other rolland mold contacting with one another during a portion of the ro ftation, and means for separating the contactingsnrfaces.

, 23. lhe combination with arotatable bed roll provided with a mold, of a pressure roll cooperating with the bodroll, movable bearings for the pressure roll, a cranlgta rod connecting the crank and rollbearing, and means for rocking the crank.

24. The combination With a rotatable bed roll provided with a mold, of a pressure roll cooperating With the bed roll, movable bearings for'thepressure roll, a crank, a rod conmeeting the crank "and roll bearing, a cam rotatable Wltllth bed roll, and a lever interposed betweenthe camand crank.

25. The combination with a rotatable bed roll providedwith a mold, of a name tothis specification.

THOMAS LUND.

pressure roll cooperating with the bed roll, movable bear- 

